Contributor info: Mr Nikolaos Dimitrakopoulos

Nikolaos Dimitrakopoulos

SciPost Phys. Proc. 18, 015 (2026) · published 29 January 2026 | Toggle abstract · pdf

We discuss the results for the four-top quark production process at the LHC at NLO accuracy in perturbative QCD for the $3\ell$ decay channel. The QCD corrections are applied in both the production and the decay stages of the four top quarks by employing the narrow-width approximation. The spin correlations are therefore preserved at NLO accuracy in QCD without any approximation. We summarize the impact of higher-order QCD effects by highlighting the sensitivity of the results on the cut applied on the invariant mass of the two hardest light jets in the process.